商品详情: 修改出售条件为都可出售

@@ -102,7 +102,7 @@ export default {
       return null;
     },
     canAddSize() {
-      return get(this.product, 'goods_list[0].canAddSize', false);
+      return get(this.product, 'goods_list[0].canAddSize', false) && this.config.type === 'sell';
     },
 
     isAvailable() {
@@ -115,7 +115,7 @@ export default {
     isTradable() {
       return this.isAvailable && (
         (this.config.type === 'buy' && this.selectedSize.storage_num > 0 && this.selectedSize.least_price !== '-') ||
-        this.isMarketable
+        this.config.type === 'sell'
       );
     },